Abstract
This commentary investigates the findings presented in the article by Yang et al. in 2023, published in the Journal of Leukocyte Biology. This commentary first summarizes the spatial-temporal dynamics of regulatory T cells derived from mice (Tabula Muris Senis) of different ages (3, 18, and 24 mo) at different anatomic niches like lymph nodes and bone marrow. We also reported possible combinations of receptor-ligand interactions among T follicular regulatory cells, T follicular helper cells, and germinal center B cells, such as the calmodulin/Fas axis and PSGL-1/L-selectin axis. Then, we have elaborated on the significance of understanding aging regulatory T cells and offered some possible future research directions for Yang et al., contributing to a critical analysis of their recent study. Building on these foundations, further investigations and studies can be conducted to delve deeper into the mechanisms by which regulatory T cells influence health upon aging, potentially unveiling novel therapeutic targets to ameliorate age-related pathogenicity.
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